Cheetahs once existed in North America, Europe, Asia, and Af…

Cheetahs once existed in North America, Europe, Asia, and Africa. Around 10,000 years ago, there was a massive decline in the cheetah population, in part due to human hunting. Cheetahs now live only in sub-Saharan Africa and their genetic diversity has been reduced by >90%. Answer the two questions below. A. Based on the above description, a ________________ [v1]  has led to a decline in genetic variation in the cheetah species.  B. After this drop in population size, the frequency of cheetahs with kinked tails has increased, although this trait provides no survival or reproductive advantages. Has the cheetah population evolved, and if so, why? [v2]

EXAM QUESTION #3 Situation: Here is a molecular equation:  …

EXAM QUESTION #3 Situation: Here is a molecular equation:   2 Au(NO3)3 (aq) +  3 Ni(s)   –>   2 Au(s) +  3 Ni(NO3)2 (aq) Instructions: (1)  Write the answers to these two questions on your “work” page.  Label them both. A.  Write the balanced total ionic equation for the reaction shown above. B.  Write the balanced net ionic equation for the reaction shown above. (2)  Type the answers to these questions in the textbox below.  Label them both. C.  What is oxidized in this reaction?  How can you tell?  Be specific. D.  What is reduced in this reaction?  How can you tell?  Be specific.